Carbureter.



F. PERRY.

CARBURETER.

nrucmou HLED AUG.3I| 1914.

1,142,763. Patented June a, 1915.

, WITNESSES: 1N VEN TOR.

A TZORNEY.

FRANK PERRY, QF FRESNO, CALIFORNIA.

Specification of Letters Patent.

Patented June 8, 1915.

' Application filed August 31, 1914. Serial No. 859,415.

T all vi /10m it may concern:

Be it known that I, FRANK PERRY, a citi zen of the United States, and aresident of the city of Fresno, county of Fresno, and State ofCalifornia, have invented a new and useful Improvement in Carburetorsfor Internal-Combustion Engines, of which the following is aspecificationj My invention relates to a new and improved meansforatomizing the liquid fuel used in internal combustion engines andmixing it with the air, whereby a more combustible mixture is obtainedthan that produced by'the carbureters heretofore in use.

In the ,drawings which accompany this specification, and which is herebymade a part hereof, Figure 1 is a side sectional view of the carburetorcomplete. Fig. 2 is a perspective view of 'the shutter showin theatomizer in the relative position it is p aced when the carbu'reter isassembled. Fig. 3 is an end view of the cap which covers the ends of thethrottle chamber. Fig. 4 shows one form of the outer tube of theatomizer. Fig. 5 shows another form of the outer tube '--of theatomizer. Fig. 6 is the inner tube of having a bearing 18 in the centerthereof ta the atomizer.

In said drawings A is a float chamber which is adapted to contain liquidfuel.

13 is the fuel intake, and 2 the float.

17 is a valve which cuts ofl the inflow of gasolene when the liquid fuelin the chamber rises to a predetermined height in the float chamber. V

B is the throttle chamber which is tubular in form and has an air intake10.

D is the mixing chamber attached to the throttle chamber B with anopening 12 between them. I

7 is an end cap which is constructed tofit snugly over the ends ofthrottle chamber B,

permit axle 9 to pass throughi C is the shutter which is constructed inthe form of a lateral section of a tube having one of the edges thereofcut diagonally,

which said shutter fits turnably within the throttle chamber, and havinga member 19 ,in the formof a segment of a circle at each cession.

E is the atomizer which consists of an inner tube 4, constructed with alateral slot 20 therein which when the carbureter is assembled is on theupper side and opens into the mixing chamberD. Ihner tube 4 is held In arigid position, and when assembled is closed at both ends, and has alead?) constructed to transmit liquid fuel from the float chamber to theinside of such inner tube 4. I I i tube 5 on said inner tube 4. Outertube 5 is open at both ends and has lateral rows of holes 17, 22 and 23therein. All of the holes in any one row are of approximately the samesize, but each row of holes is of a different size. In mv construction Iprefer to have such rows of holes decrease in suc- In assembling thecarbureterthe relation of inner tube 4 and outer tube 5 should be suchthat by moving lever 15 either one of such rows of holes 17. 22. or 23,willregister with lateral slot 20., Fig.6 shows a modified form of outertube 5. the

difference between the two be ng that instead of a-pluralitv of rows ofholes 17 '22 and 23, there is substituted triangular in-' .chamber. Whenthrottle C is partly c osed a part of such rows of holes iscovered, asthe shutter is placed within the throttle chamber so the oblique edge isadjacent'to the opening 12. The obiect of this construction is todecrease the flow of liquid fuel when the supply of'air is decreased byone movement of the shutter C. As the holes in the outer tube 5 and theslot 20 in inner tube 4 are very small, the fuel is drawn through itonly by suction, and when the shutter C simply covers the holes thesuction is prevented and.the fuel will not flow except from those holeswhich are registered with the slot2O and which are uncovered.

I claim as my invention and desire Letters Patent upon:

1. In a carburetor, the combination of a. float chamber constructed tohold liquid fuel, an inlet to such float chamber, a mixing chamberhaving an outlet openmgflz tothe openingbetween. the. throttle chamberand the mixing chamber, with 'the slo.t'therein opening toward suchmixing chamber, a lead from; the float chamber to such inner tubeconstructed'to 'c'arry'liq'uid fuel from such float chamber'to suchinner tube, and an outer tube constructed to fit over such inner tube,and having a plurality of holes therein, hand means for turning suchouter.

tube to bring a-series of'hole's to register with the slot in the innertube, said atomizer being placed in such relation to the shutter that inpartiallyclosing the opening between thethrottle chamber and the mixingchamber a wortion of such holes is covered with theshutter, and anOpening into such throt tle chamber to admit air therein, allsubstantially as described;

2. In a carbureter, the combination of a float chamber, an inlet to'suchfloat chamher, a throttlechamber, an inletrto such throttlenchamberconstructed to admit air into such throttle chamber, a mixing chamber,an opening between-such throttle chamand mixin chamber, a shutter within"such'throttle chamber constructed to-regulate'the size'of the stringbetween the throttle chamber and t e mixing chamber, hand means forregulatin'gsuch shutter, an

atomizer consisting of andnner tube hav 4-0 ing'th'e' ends thereofclosedhnd aslot therein located within such throttle chamber within theopening between the throttle chamber and the mixing chamber and justunder the path of such shiltter, and with the slot openingjoward suchmixingv chamber, an outer tube constructed to fit over such inner tubeand to be rotated by hand means, having a series of triangular holes -ina lateral row through the wall of such form and having the ends thereofclosed, an

air inlet to such throttle chamber, a mixing chamber, an opening betweensuch throttle chamber and mixing chamber, a shutter Wltl'llllySllCllthrottle chamber consisting of a lateral section of a tube adapted tofit under it so in shutting off the opening between the throttle chamberand the mixing chamber a portion of such openings in such atomizer areclosed, a lead from such floatchamber to such atomizer, allsubstantifally as described.

4. In a carbure'ter, the combination of a float chamber, an inlet tosuch float chamber, a mixing chamber having an outlet opening,

a throttle chamber tubular in form and ha in an o enin therein for takinair, and

a connection opening into such mixing chamber, a rotary shutter withinsuch throttle chamber'constructed to regulate thesize of the openingbetween the throttle chamber and the mixing chamber, an atomizer withinsuch throttle chamber just under the path of'such rotary shutter andwithin line ,of the opening between the throttlechamber and the mixingchamber, such atomizer consisting of an' inner tube closed at both endsand having a lateral slot therein opening toward such opening betweenthe throttle chamber and the mixing chamber, and. an

- outer tube constructed to fit over such in- 'shuttle, an atomizerhaving openings to' ward such mixing chamber and located within the pathof such shutter and directly ner'tube, and having a plurality of lateral7 rows of holes through the wall of such outer tube, all of the holes ineach row being approximately-uniform in size, andthe size of the holesof eachvrow being of a different size, decreasing with each successiverow,

7 such rows of holes being far enough apart so but one r0, can registerwith the slot in 'such' inner tube at one time, and means for rotatingsuch outer tube to bring either of such rows of holes to register withthe slot 7 in such inner tube, all substantially as de' scribed.

' FRANK PER-RY Witnesses WALTER SORENSEN, A. WV. CARLSON.

